Fail Installing PHP4 for second time


I had Installing PHP4 like this instruction

just for test in using ssh putty and its working

now i want to Installing PHP4 it again in still in same server

but now i get this message, so i cant continue the installer in ssh putty

[fanta]$ ./installscript
ln: `php/php-4.4.7’: File exists

how to clean or delete past Installing PHP4, i had try deleting these directory in my root using ftp but i cant delete it

php -> /home/basketmen/php-4.4.7/

php/ --> this is shortcut
installscript --> this is file


In ssh with putty, example:

rm -rf php-4.4.7

Or change the install procedure. Be careful with remove commands.